Jeff Chan wrote:
On Wednesday, September 13, 2006, 3:54:24 PM, Ron Guerin wrote:
Jeff Chan wrote:
Is the suggestion to check URLs when submitted to the redirection service or when the redirector is then used (or both)?
- Ron
Submission-time checks were the main intention.
That's what I thought, but I wanted some clarification. I'm the author of a redirector created in October 2004 that has always used SURBL to check submitted URLs. Nevertheless, I find my database polluted with abuse. Even though most of it redirects to pages in Asian languages I don't understand, it's not hard to recognize spammers landing pages. It also occurs to me that checking the URL at submission time is probably checking it before any spam with that URL has been sent, and by extension, before it would appear in SURBL.
Among the things I'm considering, is re-checking accepted URLs a few hours later, and flagging them for abuse if they come up with a hit. The other thing I think needs to be done is to follow and count the number of re-directions. I see a lot of URLs in my database that are other redirection services.
- Ron